Article
Energy & Fuels
Lodewicus van der Westhuizen, Danie Diedericks, Guven Akdogan, Johann F. Gorgens
Summary: Steam-exploded sugarcane bagasse (SE SCB) can be used as a binder for coal fines briquetting, with an optimum temperature range of 185-195 degrees Celsius. At these temperatures, the binding between coal fines and SCB is improved, but higher temperatures result in detrimental destruction of fiber structure and reduction in binding performance. Briquettes made under these optimal conditions have higher compressive strength and abrasion resistance, indicating that SE SCB could potentially be a suitable binder for coal fines briquetting.
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
(2023)
Article
Biochemistry & Molecular Biology
Jiali Zhang, Lu Zhang, Zhengzhang Wu, Peng Zhang, Ruijie Liu, Ming Chang, Xingguo Wang
Summary: The study investigated the dopaminergic neuroprotective effects of certain phytosterols identified in rice bran and rice bran oil, showing that these phytosterols may protect dopaminergic neurons through activating signaling pathways and inhibiting apoptotic proteins. The research sheds light on a new bioactivity of different phytosterols and provides insights for the nutritional evaluation of rice bran and rice bran oil.
Article
Chemistry, Multidisciplinary
Abdulkadir Kocer, Onder Kabas, Bianca Stefania Zabava
Summary: Briquetting is a pre-treatment method for producing uniform raw materials that are easy to process, transport, and store. Determining briquette quality is difficult and costly, but this paper presents an easy and inexpensive machine learning methodology for determining quality parameters of briquette samples. The best estimate is achieved using Extra Trees regression model with R2 and MAPE values of 0.76 and 0.0799, respectively.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Reetu Raj, Jeewan Vachan Tirkey
Summary: Utilizing agriculture co-products and residues for sustainable energy, economics, and environment. The study focuses on the economic viability of briquette production and its application to a diesel engine. Economic analysis and gasifier-engine performance analysis were conducted to determine the feasibility and optimize operating variables.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Energy & Fuels
Hongbin Cong, Zonglu Yao, Ondrej Masek, Haibo Meng, Chenxu Sheng, Yunong Wu, Lixin Zhao
Summary: Charcoal-based briquettes prepared with bio-tar as a binder showed improved heating value and combustion index; addition of bio-tar enhanced physical stability of briquettes; pollutant emissions could be mitigated by adding hydrated lime.
Article
Multidisciplinary Sciences
Rojarej Nunta, Charin Techapun, Sumeth Sommanee, Chatchadaporn Mahakuntha, Kritsadaporn Porninta, Winita Punyodom, Yuthana Phimolsiripol, Pornchai Rachtanapun, Wen Wang, Xinshu Zhuang, Wei Qi, Kittisak Jantanasakulwong, Alissara Reungsang, Anbarasu Kumar, Noppol Leksawasdi
Summary: Open burning of agricultural residues leads to various complications, including particulate matter pollution, soil degradation, and global warming. This study evaluated different agricultural residues (sugarcane bagasse, rice straw, corncob, and sweet sorghum bagasse) and yeast strains (Candida tropicalis, C. shehatae, Saccharomyces cerevisiae, and Kluyveromyces marxianus var. marxianus) for their potential in producing bioethanol and phenylacetylcarbinol (PAC), an intermediate in pharmaceutical production. Among the substrates and yeasts tested, rice straw cultivated with C. tropicalis exhibited significantly higher ethanol concentration (15.3 g L-1) after 24 hours of cultivation. The study also compared the use of whole cells biomass and partially purified pyruvate decarboxylase (PDC) of C. tropicalis for PAC production, and found that the whole cells biomass yielded 68.4% more PAC. This research demonstrates the potential of utilizing lignocellulosic residues for bioethanol and PAC production, which can contribute to environmental mitigation and enhance the bioeconomy.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Saadia Meraj, Rabia Liaquat, Salman Raza Naqvi, Zeshan Sheikh, Atoofa Zainab, Asif Hussain Khoja, Dagmar Juchelkova, Abdulaziz Atabani
Summary: The study investigated the best-mixed proportion of lignocellulosic residues in Pakistan through anaerobic co-digestion, achieving the highest biomethane yield. The performance of anaerobic reactors was evaluated using bio-kinetic parameters, with the Logistic function model providing the best fit with experimental data.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Moonis Ali Khan, Ayoub Abdullah Alqadami, Saikh Mohammad Wabaidur, Byong-Hun Jeon
Summary: The study proposes a technique to utilize municipal solid wastes, polythene (PE) and sugarcane bagasse (SB), for water decolorization. The development of an activated SBPEAC composite showed improved adsorption efficiency compared to the SBPE composite. The adsorption mechanism involved electrostatic interaction, H-bonding, and pi-pi/n-pi interactions.
Article
Construction & Building Technology
G. Athira, A. Bahurudeen
Summary: Rice straw ash and sugarcane bagasse ash, two commonly available biomass ashes in India, can be used as supplementary cementitious materials in concrete. This study compares the microstructure of both ashes and investigates their influence on the rheological properties of cementitious systems. The research finds that both ashes contain silica-storage structures called phytoliths, with rice straw ash having a higher phytolith content. The addition of both ashes increases the yield stress and viscosity of cement paste, and mechanical processing improves the rheological properties of cement blended with these ashes.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Chemical
Marianny Silva Canedo, Maria Fernanda Santos Figueiredo, Maximilian Thomik, Nicole Vorhauer-Huget, Evangelos Tsotsas, Joao Claudio Thomeo
Summary: Porosity and pore size distribution are important factors influencing the physical properties of porous media, especially for solid-state cultivation. This study used computer-aided 2D photographic technique and X-ray tomography imaging to evaluate the changes in porosity and pore size distribution due to fungal growth, revealing a significant reduction in porosity and a wide pore size distribution in uncultivated media.
Article
Polymer Science
Wiriya Thongsomboon, Yodthong Baimark, Prasong Srihanam
Summary: Sucrose bagasse and rice straw were used to extract cellulose fibers, which were then prepared into milky white and transparent films. The addition of glycerol slightly decreased film transparency. The films had a homogeneous surface with randomly oriented fibers. Rice straw film was more fragile than sugarcane bagasse film. The extracted cellulose could form spherical particles. This study demonstrates the potential use of sugarcane bagasse and rice straw as cellulose-based materials.
Article
Agricultural Engineering
Qiang Yu, Saeid Baroutian, Jun Xie
Summary: The study showed that blending corncob and sugarcane bagasse resulted in lower activation energies for hemicellulose decomposition, while the addition of nitrogen-rich Broussonetia papyrifera weakened the acidic autohydrolysis process but produced stable products. Cumulative feedback inhibition occurred among different biomass, which could be minimized by controlling the blending ratio.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yongxin Lei, Wen Sun, Santosh K. Tiwari, Kunyapat Thummavichai, Oluwafunmilola Ola, Xupeng Qin, Zhiyuan Ma, Nannan Wang, Yanqiu Zhu
Summary: This study utilized Zn/Co-ZIF nanoparticles loaded onto aerogel to form pomegranate-like structure, enhancing degradation efficiency of RhB. The aerogel-wrapped nanoparticles showed good reusability. Electron transfer between Zn and Co in the catalyst ensured completion of redox cycle.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Dwini Normayulisa Putri, Shabrina Firlyannisa Pratiwi, Meka Saima Perdani, Desy Rosarina, Tania Surya Utami, Muhamad Sahlan, Heri Hermansyah
Summary: In this study, succinic acid (SA) was successfully produced from rice straw (RS) and sugarcane bagasse (SB) through sequential peracetic acid (PA) and alkaline peroxid (AP) pretreatment assisted by ultrasound and pre-hydrolysis followed by simultaneous saccharification and fermentation (PSSF). The production of SA was significantly influenced by yeast extract (YE) concentration, inoculum concentration, and biomass type. The optimal conditions for SA production from RS and SB were identified as 15 g/L YE concentration with 5% v/v inoculum and 10 g/L YE concentration with 7.5% v/v inoculum, respectively. This study highlights the potential of RS and SB as low-cost feedstocks for sustainable and environmentally friendly SA production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Food Science & Technology
Song-Hee Moon, Hae-Choon Chang
Summary: Fermented rice bran using Lactiplantibacillus plantarum EM showed high cholesterol removal and strong antimicrobial activity. The resulting HFRB had effective cholesterol removal and antimicrobial activities against foodborne pathogens and spoilage fungi. The fermentation process improved the overall organoleptic quality, making HFRB a promising functional food candidate.
Article
Agricultural Engineering
Alchris Woo L. Go, Yi Chang Xiao, Kristelle Quijote, Chintya Gunarto, Roxanne Kathlyn O. Alivio, Yi-Hsu Ju, Artik Elisa Angkawijaya, Shella Permatasari Santoso
Summary: This study presents a new approach and concept for the conversion of sugarcane bagasse (SCB) generated in the commercial sector, and successfully synthesizes a high-value product, solid acid catalyst (SAC). By conducting dilute acid hydrolysis (DAH) and drying carbonization sulfonation processes, SCB was transformed into carbonized and sulfonated post-hydrolysis SCB (PHSCB). The synthesized catalyst showed excellent conversion performance in biodiesel production.
BIOMASS & BIOENERGY
(2022)
Article
Engineering, Chemical
Artik Elisa Angkawijaya, Yen Nhi Tran-Chuong, Quoc Nam Ha, Phuong Lan Tran-Nguyen, Shella Permatasari Santoso, Vania Bundjaja, Alchris Woo Go, Hsien-Yi Hsu, Yi-Hsu Ju
Summary: This study developed an environmentally friendly magnetic adsorbent Fe3O4/thiamine, which showed high efficiency in removing phosphate pollution from water sources without affecting plant growth. The research provides an effective technical approach to address the issue of eutrophication caused by agricultural fertilizers in water sources.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Environmental Sciences
Phuong Lan Tran-Nguyen, Artik Elisa Angkawijaya, Quoc Nam Ha, Yen Nhi Tran-Chuong, Alchris Woo Go, Vania Bundjaja, Chintya Gunarto, Shella Permatasari Santoso, Yi-Hsu Ju
Summary: A green method for synthesizing thiamine functionalized-Fe3O4 (FT) as an environmentally friendly adsorbent with superparamagnetism was developed in this study. The FT15 adsorbent exhibited high adsorption capacity for Cu(II) ions and could be easily recovered using an external magnetic force. The physicochemical properties of post-adsorption materials revealed the contribution of thiamine's amine group, pyrimidine ring, and thiazolium group to the enhanced adsorption capacity.
Article
Green & Sustainable Science & Technology
Alchris Woo Go, Kristelle L. Quijote, Roxanne Kathlyn O. Alivio, Yi-Hsu Ju, Chintya Gunarto, Artik Elisa Angkawijaya, Shella Permatasari Santoso, Maria Yuliana
Summary: The study showed that lipids from post-hydrolyzed rice bran can be used for biodiesel production without the need for additional catalysts. Through in-situ esterification, efficient conversion of fatty acids can be achieved under high reactor loading and appropriate solvent-to-solid ratio conditions.
Article
Engineering, Chemical
Chintya Gunarto, Alchris Woo Go, Yi-Hsu Ju, Artik Elisa Angkawijaya, Shella Permatasari Santoso, Aning Ayucitra, Felycia E. Soetaredjo, Suryadi Ismadji
Summary: Microemulsions (MEs) based on castor oil (CO) show promise in drug delivery, especially as carriers for hydrophobic compounds. The use of cellulose nanocrystals (CNC) as a pickering agent may enhance the stability of ME, leading to a decrease in IC50 concentration for free-radical scavenging activity.
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Agricultural Engineering
Hao Nhien Vo, Alchris Woo Go, Chintya Gunarto, Ramelito C. Agapay, Kristelle L. Quijote, Artik Elisa Angkawijaya, Shella Permatasari Santoso, Roxanne Kathlyn O. Alivio
Summary: This study evaluated the removal of BR9 from aqueous solution using lignin and holocellulose in extractive-free SCB as a natural and low-cost adsorbent. The adsorption capacity of eSCB for BR9 was found to be high, and eSCB could be reused multiple times.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Green & Sustainable Science & Technology
Carlos David Sulistiyo, Kuan-Chen Cheng, Henoch Jaya Su'andi, Maria Yuliana, Chang -Wei Hsieh, Suryadi Ismadji, Artik Elisa Angkawijaya, Alchris Woo Go, Hsien Yi Hsu, Phuong Lan Tran-Nguyen, Shella Permatasari Santoso
Summary: In this study, durian rind was used to produce cellulose and activated carbon, which showed high adsorption capacity for Cr6+ with a faster rate by the activated carbon. Economic analysis revealed higher energy costs for durian rind to activated carbon conversion.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biochemistry & Molecular Biology
Eric Alvares, Stanley Tantoro, Christian Julius, Kuan-Chen Cheng, Felycia Edi Soetaredjo, Hsien-Yi Hsu, Artik Elisa Angkawijava, Alchris Woo Go, Chang-Wei Hsieh, Shella Permatasari Santoso
Summary: Phosphate-selective composite adsorbents, MIL100/Alg and MIL101/Alg, were prepared by incorporating alginate with MIL100 and MIL101. The adsorption capacity of MIL100/Alg and MIL101/Alg for phosphate outperformed their constituting components. N2 sorption analysis revealed the formation of mesoporous structures on the Alg network upon incorporation of MIL100 and MIL101. The composite adsorbents showed excellent selectivity for anionic phosphate and can be easily regenerated. Preliminary economic analysis indicated that MIL100/Alg and MIL101/Alg are economically viable adsorbents.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Green & Sustainable Science & Technology
Janice B. Jamora, Alchris Woo Go, Sarah Emily L. Gudia, Marnie B. Giduquio, Michael E. Loretero
Summary: Biomass-fueled cogeneration plants in the Philippines utilize agricultural residues as feedstock, which in turn results in the generation of ash. This study estimates the potential amount of rice husk and rice straw generation, the energy that can be recovered, and the greenhouse gas emissions reduction potential of using the generated ash in cement-based industries. The transportation of ash and the cost of different ashes are also evaluated.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Biomaterials
Artik Elisa Angkawijaya, Vania Bundjaja, Shella Permatasari Santoso, Alchris Woo Go, Shin-Ping Lin, Kuan-Chen Cheng, Felycia Edi Soetaredjo, Suryadi Ismadji
Summary: Tuberculosis, caused by M. tuberculosis bacteria infection, is a deadly disease. The long-term drug consumption and low patient commitment hinder the success of TB treatment. To overcome these obstacles, biomolecule metal-organic frameworks (BioMOFs) are explored as potential drug carriers. This study successfully synthesized a copper-based BioMOF (Cu-PCA) using a bioactive organic linker and demonstrated its high drug loading capacity and controlled release kinetics. Cu-PCA exhibited antibacterial activity and good biocompatibility.
BIOMATERIALS ADVANCES
(2023)
Article
Green & Sustainable Science & Technology
Kristelle L. Quijote, Alchris Woo Go, Artik Elisa Angkawijaya, Shella Permatasari Santoso, Chintya Gunarto, Siti Zullaikah
Summary: Pre-functionalized lipid-dense post-hydrolyzed spent coffee grounds (PHSCG) were used as feedstock for fatty acid methyl ester (FAME) production via non-isothermal in-situ (trans)esterification (ISTE) under subcritical conditions. The study investigates the influence of reactor loading (RL), solvent-to-solid ratio (SSR), temperature, and holding time on the conversion. High FAME yield can be achieved in about 1 h without needing an additional catalyst. The catalytic activity of the residues recovered after ISTE was supported by elemental analysis and FT-IR peak identification.
Article
Chemistry, Multidisciplinary
Roxanne Kathlyn O. Alivio, Alchris Woo Go, Artik Elisa Angkawijaya, Shella Permatasari Santoso, Chintya Gunarto, Felycia Edi Soetaredjo
Summary: This study explores the use of extractives-free SCB as a renewable adsorbent to remove Rhodamine B from water, contributing to environmental conservation and better utilization of natural resources. The adsorption kinetics and equilibrium uptake were assessed under different pH, RhB concentrations, and temperatures. The results show that the Elovich and multi-mechanistic models best describe the adsorption kinetics, and the adsorption is primarily physisorption but may involve chemisorption. The study also reports on the regeneration and reuse of eSCB as an adsorbent for RhB.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Construction & Building Technology
Sarah Emily L. Gudia, Alchris Woo Go, Marnie B. Giduquio, Roxanne G. Juanir, Janice B. Jamora, Chintya Gunarto, Ian Dominic F. Tabanag
Summary: The quality of sugarcane bagasse ash (SCBA) varies across different areas, affecting its performance as a cement replacement. This research studied the potential of locally available SCBA in the Philippines as a partial cement replacement and determined the appropriate formulations for mortar and concrete production. Different mixtures with varying SCBA-to-binder and water-to-binder ratios were formulated to assess their impact on consistency, setting time, density, and compressive strength. Regression analysis was used to predict water requirements for both paste and mortar. The results showed that increasing SCBA-to-binder ratio led to higher water demand and longer setting time, but also improved the density and compressive strength of mortar up to a certain point.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Engineering, Environmental
Shella Permatasari Santoso, Artik Elisa Angkawijaya, Vania Bundjaja, Alfin Kurniawan, Maria Yuliana, Chang-Wei Hsieh, Alchris Woo Go, Kuan-Chen Cheng, Felycia Edi Soetaredjo, Suryadi Ismadji
Summary: The study investigated the physicochemical properties of epichlorohydrin crosslinked cellulose hydrogels prepared by microwave and water-bath heating methods. Results showed that microwave heating accelerated the crosslinking reaction, reducing production costs, and exhibited high adsorption capacity for Cu(II) removal.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
Ery Susiany Retnoningtyas, Yi-Hsu Ju, Suryadi Ismadji, Chintya Gunarto, Aning Ayucitra, Alchris Woo Go, Shella Permatasari Santoso, Nathania Puspitasari, Artik Elisa Angkawijaya
Summary: In this study, methionine-functionalized boehmite was used as an adsorbent for methyl orange. The results show that the methionine-functionalized boehmite has a mesoporous structure and a large surface area, which provides good adsorption capacity for methyl orange. Kinetic and thermodynamic studies reveal that the adsorption process is spontaneous and endothermic.
BIOINTERFACE RESEARCH IN APPLIED CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
